Tile-machine.



J.' H. STEWART a J. M. SGHENK.

' TILE MAGHINE.

APPLIOATION FILEDy AUG. 14,1908.

927,895A Patented .my 13,1909.

2 SHEETS-511221' 1.

J. H. STEWART a J. M. SCHEMEk TILE MACHINE.

APPLIOATION FILED AUG.14,190S.

9537.895. v patented July 13, 1909.

2 SHEETS-SHEET 2.

w @g/@wf rfa/away wear.

'the means which are hereinafter fully de.d

Fig.` 10 is a 4UNITED STATES' PATENT y .JOHN H. STEWART ND JOHN M. SGHENK, OF WATERLOO, IOWA, ASSIGNORS TO CEMENT TILE MACHINERY (fOlNllANY,r OF WATERLOO, IOWA.

TILE-MAGHINE.

Specification of Letters Patent.

Patented .ruiy 1e, 190e.

Application filed August 14, 1908. Serial N0. 448,502.

rment is 'to provide arotatable former-head ada ted to cooperate withan exterior mold,l

in orming 'a tile from concrete or similar materialgthe portions of such head which are most'subject to Wear being adalpted forl adjustment to compensate for oss occasioned by such Wear, and being formed of such material' as is most resistant to loss by This object We have 'accomplished by scribed and claimed, and which are illustrated "in the accompanying drawings, in which: Figure 1 is a side elevation of our improved former-head, showing it'witliin rand spaced away from a hollow cylindrical mold. Fig. 2 isanother elevation of said former-head, with portions broken away to disclose the interior, in part, taken at an angle of ninety degrees from the pp'int of View in' Fig. 1. Fig. 3 is a detail view, showing the upper part of the head with its connections and seats for the intermediate parts. Fig. 4 is anotherviewof the parts shown in Fig. 3, taken at an angle of ninety degrees from the latter. Fig. 5 is ahorzontal section of Fig. 3 on the line c-d' of the latter'. Fig. 6 is an under plan view of the structure depicted in Fig. 4. Fig. 7 is a horizontal section, enlarged, of the former-head #shown in Fig. 1, taken'along the line a-b of Fig. 1. Fig. 8 is a pcrsjiectivecf one of thc .intermediate adjusting-plates. Fig. S) is a perspective ol one el" the intermediate outer forming-plates. perspective of said'pl'ates con1- bined. 5 l

Similar numbers refer to silnilai` parts throughout the several views.

The hollow cylindrical mold-casing 3 is adapted to receive the former-head S, and is slpaced away from same coneentrically to a istance equal to the determined.thickness of 'lhe 'the #le to be formed therebetween.

former is movable through said mold-casing, s' but it is lWholly immaterial Whether the former be moved longitudinally through the casing, or the casin f be moved longitudinally over .the former; he up )er portionly el the former is of a substantia ly conicalv er bcllshape, with a cylindrical u per extension havin an interiorly-threade seat 24 for the threa ed shank 23 of a rotatable shaft 1, and the latter may be rotated by means `o1 any suitable source of 'owen The intermediate removable and adjustable plates .5, which continue the outer'contour of the bell`-like form, downward, are succeededin line below by the cylindrical head 8. The parts 5 and 8 taken together I are exteriorly bellshaped as stated, but have on opposite sides depressions 26.

T he depressions 26 have one vertical abrupt angular edl adjacent to the dee est part thereof, W e the opposite side o each depression as well as of their extensions 4, shade off more shallowly and gradually tangentially with the bell-surface' of the parts. The exterior form of `this modeling body has been patented under United States Patent Number 819,931, issued todohn M. Schenk and Joseph Schenk,l on May 8th, 1906, and itis our intention by our resent invention to not claim this specialv orm of 1nodeling-head, but merely the construction of such ahead whereby its parts which are subject to peripherali'vear maybe adjusted at will to keep the outerform true, and thus insure longer operative eieiency for it. Vith this latter idea'in viiew, ywe forni the intermediate plates 5 ofrstecl or hardened iron tov insure .long wearing eiliciency, and arrange for adjusting the4 radial position of each plate independently of each other so as Vto allow for loss caused by friction. of the outer contact-surface of each while in operation.v The shank 2 has a centrally'locatedV depending plate` 12 whosey vertical edges are well Within the outer lower edge of such shank, and whose lower cornersare rounded and recede inwardly toward a fillet or iiange 13 integral with said plate and concentric with the shaft 1. The fillet 13 has at opposite sides lugs which are vertically oriieed to receive the lower .ends of the pinsel 1, other oriloes or sockets 10 being provided in the overhanging lower surface of the shank 2 inline to receive the u )per ends ol said pins, for a purpose to be hereinafter described.- A central exteriorl -threadcd projection 9 depends from the p ate l2 and is adapted to screw into an interiorly-tln'eaded central opening 25 in the top of the cyiindrical v former 8.

' vertical orifice 20. shown in Fig. 7,

lcurved hollow between vertical curved ridge in is located is adapted to of the plate 5 along the greater portion of its,

l extent, but a plortion of the block or plate 6 is exposed in 1 a certain pu iose.

- .ter may moverelatively to` saidv plate,

e concavit 26 of the head for The ate 5 is removably secured to t e block 6 y means of a ma chine-screw 7 entering registering threaded openings 22-21 in both parts.

Each exposed portion of the plates an oriice '15 large the stem but also, the head of an screw 16, and threaded opening 29 in the plate 12 and extends therethrough into a plain ,socket 18 in the oppositely-placed plate 6. i'A contact-plate 17 is seated on the end of the screw 17 in a groove thereon so that the lag,-

t e late bearing against the inner surface of each plateI 6 opposite to the end of said plate which has van oriiice 15. The head ot the screw 1 6 may be provided with a transverse slot fo" a Iscrew-1iriver, Ior the head may be hexagonal, the opening 15 being llarge adj usting enough to admit a socl et-wrench with which;l

to engage the head. y

The plates 5, when secured to the platesl 6 as above described, are not again disassembled untill worn out.

When it is desired to adjust the -plates outwardly a sufficient distance to compen-v sate for wear of their outer contact surfaces, the screws 16 may be turnedwhich forces such plates outward with their carryingn `blocks 6. It is obvious that the adjustment of the former-head may thus be effected at any time, when. the machine is stop ied, without removing the head from the sha t` 1.

The former-head shown may be moved vertically through the casing 3 by any desired means, and rotated simultaneously, the conical part of the head and the depressions'Z-i serving to draw down'the material supplied from above, while the cylindrical base 8 packs the material and compresses it against the casing 3 in a well-known manner.

Having described shank 2 and ii let 131 6 has enough to receive not only our invention, whatwe the..latterworks 'within a claim as new, and desire to secure by Letters Patent, is:

1.@n a tile machine, va former-head composed of a supporting body, a cylinder' den tachably secured to the free end ol said body, an intermediateplato detachably secured to said supporting body and radially adjustable, and an outer plate detachably secured upon the outer side of said'intermediate plate.

2.' In a tile machine, a' former-head coinosed of a supporting body, a cylindrical ormer detachaolysecured to the tree end thereof, intermediate plates detachably and adjustably secured to said supporting body, and an outer contact-plate detachably se# cured to each ol said intermediate plates.

" 3. In a tile machine, affirmer-head of an tachably secured to said hanger', inter1ne.

diate. adjusting-means detachably secured to said hanger, and contactplates detach- .ably secured to said adjustin *-means hetween said supporting iody an said cylind-rical former.

4. In a tile machine, the combination` with an outer mold-casing, of a rotatable former- `head therein 'and spaced apart therefrom, said former-head being composed of a substantially bell-shaped head furnished with oppositely-located depressions and having a depending hanger, a cylindrical former vdetachably secured to said hanger, detachable spacing-plates pivotally secured to opposite sides of said hanger between said head and said cylindrical former, means for separately adjusting'said spacing-plates to vary the distance of' one art thereof from said hanger vtoward sai mold-casing, and a contact-plate ,detachably secured to the outer side of each of said'spacinU-plates with an outer surface continuing the. outer control of the adjacent part of said head.

5. ln a tile machine, the combination with an outer mold-casing, of a formerehead adapted to operate therein composed of a core, a spacing-plate on cach sideof said core yand detachably connected. thereto, a forming`-plate detachably secured to the outer side of eacl'i,spaciiigplate, and adjust- ,ing-means adapted to separately vary the `distance ot such spacingmieans l ,from said core to permitotkeeping the outer wearing peripheryo' said forming-plates in a determined distancelrom the axis oi' the core.

` Signed at VVateigloo,IoWa, this 27 th day of 

